December weather forecast
South Bay, FL

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Weather in December

December, the first month of the winter in South Bay, is also a moderately hot month, with an average temperature ranging between max 76.1°F (24.5°C) and min 61.3°F (16.3°C).

Temperature

South Bay, Florida, notes an average high-temperature of a still warm 76.1°F (24.5°C) in December, hardly diverging from November. South Bay, in December, experiences an average temperature of 61.3°F (16.3°C) at night.

Humidity

In December, the average relative humidity in South Bay is 78%.

Rainfall

In South Bay, during December, the rain falls for 8.4 days and regularly aggregates up to 0.59" (15mm) of precipitation. In South Bay, during the entire year, the rain falls for 178.9 days and collects up to 20.51" (521mm) of precipitation.

Daylight

With an average of 10h and 30min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 6:54 am and sunset at 5:29 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:41 pm EST.

Sunshine

The month with the least sunshine in South Bay is December, with an average of 6.2h of sunshine.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 5 during December leads to these instructions:
Heed the precautions - Suggestions to avoid sunburn are made. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in South Bay in December?

December temperatures in South Bay vary between a high-temperature of 76.1°F (24.5°C) and a low-temperature of 61.3°F (16.3°C). In October, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is estimated at 91.4°F (33°C).

What is the average humidity in December in South Bay?

The average relative humidity in December in South Bay is 78%.

How much does it rain in South Bay in December?

In South Bay, Florida, in December, during 8.4 rainfall days, 0.59" (15mm) of precipitation is typically accumulated.

What is the month with the shortest days in South Bay?

December has the shortest days of the year in South Bay, Florida, with an average of 10h and 30min of daylight.

What is the average length of the day in December in South Bay?

The average day length in December is 10h and 30min.

When is the sunrise / sunset in December in South Bay?

In December, on the first day of the month, sunrise is at 6:54 am and sunset at 5:29 pm. On the last day of the month, in South Bay, Florida, sunrise is at 7:11 am and sunset at 5:41 pm EST.

What is the month with the least sunshine in South Bay?

With an average of 6.2h of sunshine, December has the least sunshine of the year in South Bay, Florida.

How long on average sun shines in December in South Bay?

In South Bay, the average sunshine duration in December is 6.2h.

What is the month with the lowest UV index in South Bay?

January, February and December, with an average maximum UV index of 5, are months with the lowest UV index in South Bay, Florida.

How high is the UV index in December in South Bay?

The average daily maximum UV index in December in South Bay is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
South Bay, FL

Average temperature in December - South Bay, FL
  • Average high temperature in December: 76.1°F

The warmest month (with the highest average high temperature) is August (89.2°F).
The month with the lowest average high temperature is January (72.9°F).

  • Average low temperature in December: 61.3°F

The month with the highest average low temperature is August (76.3°F).
The coldest month (with the lowest average low temperature) is January (57.2°F).

Average pressure in December
South Bay, FL

Average pressure in December - South Bay, FL
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).

Average wind speed in December
South Bay, FL

Average wind speed in December - South Bay, FL
  • Average wind speed in December: 6.7mph

The windiest month (with the highest average wind speed) is March (7.3mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).

Average humidity in December
South Bay, FL

Average humidity in December - South Bay, FL
  • Average humidity in December: 78%

The month with the highest relative humidity is September (81%).
The month with the lowest relative humidity is March (70%).

Average rainfall in December
South Bay, FL

Average rainfall in December - South Bay, FL
  • Average rainfall in December: 0.59"

The wettest month (with the highest rainfall) is August (4.02").
The driest month (with the least rainfall) is January (0.43").

Average rainfall days in December
South Bay, FL

Average rainfall days in December - South Bay, FL
  • Average rainfall days in December: 8.4 days

The month with the highest number of rainy days is July (25.1 days).
The month with the least rainy days is January (6.7 days).

Average daylight in December /
Average sunshine in December
South Bay, FL

Average daylight in December / Average sunshine in December - South Bay, FL
  • Average daylight in December: 10h and 3min

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in December: 6h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).

Average sunshine days in December
South Bay, FL

Average sunshine days in December - South Bay, FL
  • Average sunshine days in December: 19.7 days

The month with the most sunshine days is January (21.6 days).
The month with the least sunshine days is July (3.6 days).

Average UV index in December
South Bay, FL

Average UV index in December - South Bay, FL
  • Average UV index in December: 5

The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February and December (UV index 5).

Average cloud cover in December
South Bay, FL

Average cloud cover in December - South Bay, FL
  • Average cloud cover in December: 33

The months with the most cloud cover are January and December (Cloud cover 33).
The months with the least cloud cover are March, April, May and July (Cloud cover 28).

Average visibility in December
South Bay, FL

Average visibility in December - South Bay, FL
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

South Bay, Florida, USA

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